Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms....Presentation ( FilePath + "Find and Replace.pptx" ); //获取演示文稿中的所有文本框 ITextFrame...Portions ) //查找需要替换的文本 if ( port . Text . Contains ( strToFind )) //将现有文本替换为新文本...